GB0019104D0 - Interpolation method and circuit - Google Patents

Interpolation method and circuit

Info

Publication number
GB0019104D0
GB0019104D0 GBGB0019104.9A GB0019104A GB0019104D0 GB 0019104 D0 GB0019104 D0 GB 0019104D0 GB 0019104 A GB0019104 A GB 0019104A GB 0019104 D0 GB0019104 D0 GB 0019104D0
Authority
GB
United Kingdom
Prior art keywords
circuit
interpolation method
interpolation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GBGB0019104.9A
Other versions
GB2355533A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agilent Technologies Inc
Original Assignee
Agilent Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agilent Technologies Inc filed Critical Agilent Technologies Inc
Publication of GB0019104D0 publication Critical patent/GB0019104D0/en
Publication of GB2355533A publication Critical patent/GB2355533A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/20—Increasing resolution using an n bit system to obtain n + m bits
    • H03M1/202—Increasing resolution using an n bit system to obtain n + m bits by interpolation
    • H03M1/206—Increasing resolution using an n bit system to obtain n + m bits by interpolation using a logic interpolation circuit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24404—Interpolation using high frequency signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
    • H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental
    • H03M1/303—Circuits or methods for processing the quadrature signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
GB0019104A 1999-08-20 2000-08-03 Interpolation circuit Withdrawn GB2355533A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/378,191 US6355927B1 (en) 1999-08-20 1999-08-20 Interpolation methods and circuits for increasing the resolution of optical encoders

Publications (2)

Publication Number Publication Date
GB0019104D0 true GB0019104D0 (en) 2000-09-27
GB2355533A GB2355533A (en) 2001-04-25

Family

ID=23492119

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0019104A Withdrawn GB2355533A (en) 1999-08-20 2000-08-03 Interpolation circuit

Country Status (7)

Country Link
US (1) US6355927B1 (en)
JP (1) JP2001074504A (en)
KR (1) KR20010030096A (en)
DE (1) DE10028409C2 (en)
GB (1) GB2355533A (en)
SG (1) SG89341A1 (en)
TW (1) TW546469B (en)

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US6789041B1 (en) * 2001-05-08 2004-09-07 Miranova Systems, Inc. Bi-directional signal converter
US6660996B1 (en) * 2001-07-03 2003-12-09 Lexmark International, Inc. System and method for examining relationship between intersecting encoder output signals
JP2003240607A (en) * 2002-02-18 2003-08-27 Canon Inc Electric dividing network of encoder
DE10244234A1 (en) * 2002-09-23 2004-03-25 Dr. Johannes Heidenhain Gmbh Position measuring device
US6900793B2 (en) * 2002-09-30 2005-05-31 Microsoft Corporation High resolution input detection
JP4520121B2 (en) * 2003-08-08 2010-08-04 シャープ株式会社 Optical encoder
US6963820B2 (en) * 2003-10-28 2005-11-08 Lexmark International, Inc. Analog encoder method for determining distance moved
US6816091B1 (en) * 2003-12-18 2004-11-09 Agilent Technologies, Inc. Interpolator
US20050238365A1 (en) * 2004-04-22 2005-10-27 Tan Boon K Optical encoder providing a wide range of resolutions
WO2006047622A2 (en) * 2004-10-25 2006-05-04 Miranova Systems, Inc. Reprogrammable bi-directional signal converter
US20060098242A1 (en) * 2004-11-03 2006-05-11 Shih-Yen Chang Image processing system and related method for scanning and generating an image
JP4002581B2 (en) 2005-04-06 2007-11-07 シャープ株式会社 Photoelectric encoder and electronic equipment
US20070045525A1 (en) * 2005-08-26 2007-03-01 Delta Electronics, Inc. Optical encoder and controller for the same
US7265339B1 (en) * 2006-05-22 2007-09-04 Avago Technologies General Ip (Singapore) Pte. Ltd. Encoder interpolation apparatus
US7400269B2 (en) * 2006-11-09 2008-07-15 Avago Technologies Ecbu Ip Pte Ltd Coding element with integrated limit switch
US7612326B2 (en) * 2007-08-27 2009-11-03 Delta Electronics Inc. Angle-calculation apparatus and angle-calculation method for three-phase optical encoder
DE102007042073B4 (en) 2007-09-05 2018-07-12 Delta Electronics, Inc. Apparatus and method for angle calculation for a three-phase optical encoder
US7880658B2 (en) 2009-02-26 2011-02-01 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Interpolation accuracy improvement in motion encoder systems, devices and methods
US7880657B2 (en) * 2009-02-26 2011-02-01 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Interpolation accuracy improvement in motion encoder systems, devices and methods
US8330098B2 (en) * 2010-07-07 2012-12-11 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. High resolution, high speed, miniaturized optical encoder
US8384014B2 (en) 2010-10-27 2013-02-26 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Interpolation method and device for increasing the resolution of encoders
US8841600B2 (en) 2010-10-31 2014-09-23 Avago Technologies General Ip (Singapore) Pte. Ltd. Hysteresis-compensating interpolation circuits in optical encoders
US8772705B2 (en) 2010-12-01 2014-07-08 Avago Technologies General Ip (Singapore) Pte. Ltd. Interpolation circuitry for optical encoders
DE112013006974T5 (en) * 2013-04-23 2016-01-07 Mitsubishi Electric Corporation Magnetic position detection device and magnetic position detection method
KR101414209B1 (en) * 2014-04-02 2014-07-01 금양산업(주) Circuit For Rotating Angle Sensing Of Encoder
JP6146827B2 (en) * 2015-09-10 2017-06-14 Ｎｅｃプラットフォームズ株式会社 Telephone exchange apparatus and method, and program
US9864398B2 (en) 2015-12-30 2018-01-09 Texas Instruments Incorporated Embedded clock in a communication system
US9887781B1 (en) * 2016-10-24 2018-02-06 Tt Electronics Plc High resolution interpolator for optical encoder
TWI651938B (en) * 2017-03-06 2019-02-21 曾吉旺 Optical scanning double-layer light-guiding encoder
TWI663845B (en) * 2017-11-09 2019-06-21 美商Ｔｔ電子公司 Optical encoding device and method
US20190212172A1 (en) * 2018-01-09 2019-07-11 Tt Electronics Plc Absolute Optical Encoders Using Programmable Photodetector Array
US10886932B2 (en) 2018-09-11 2021-01-05 Tt Electronics Plc Method and apparatus for alignment adjustment of encoder systems
US11073413B2 (en) * 2018-11-26 2021-07-27 Pixart Imaging Inc. Optical encoder and interpolation circuit and operating method thereof
US11187558B2 (en) 2019-07-18 2021-11-30 e1ectr0n, Inc. Incremental encoder position interpolation

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1945206C3 (en) * 1969-09-06 1974-02-21 Fa. Carl Zeiss, 7920 Heidenheim Device for interpolation
GB2067747B (en) * 1980-01-18 1983-08-03 Stanley Tools Ltd Displacement measuring system
US4691101A (en) 1985-06-19 1987-09-01 Hewlett-Packard Company Optical positional encoder comprising immediately adjacent detectors
US4904861A (en) 1988-12-27 1990-02-27 Hewlett-Packard Company Optical encoder using sufficient inactive photodetectors to make leakage current equal throughout
JP3347182B2 (en) * 1993-05-07 2002-11-20 日本電産コパル株式会社 Optical displacement detector
US5442313A (en) * 1994-05-27 1995-08-15 The Torrington Company Resolution multiplying circuit
US5998783A (en) * 1994-06-01 1999-12-07 Stridsberg Innovation Ab Heat protected position transducer in an electric motor
US5844814A (en) 1996-09-27 1998-12-01 International Business Machines Corporation Optical position sensing device and method for sub-micron measurement
JP3015747B2 (en) 1996-10-29 2000-03-06 株式会社ミツトヨ Encoder interpolation circuit

Also Published As

Publication number Publication date
TW546469B (en) 2003-08-11
SG89341A1 (en) 2002-06-18
KR20010030096A (en) 2001-04-16
DE10028409C2 (en) 2003-12-24
JP2001074504A (en) 2001-03-23
DE10028409A1 (en) 2001-04-05
US6355927B1 (en) 2002-03-12
GB2355533A (en) 2001-04-25

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)